Australia will help Papua New Guinea build a new ministerial wing onto its parliament, as a gift to mark 50 years of the nation's independence.

Prime Minister Anthony Albanese announced the support after attending a state dinner in Port Moresby with other country representatives, including Prince Edward, on Monday.

"Our support for the expansion of Parliament House is an investment in Papua New Guinea's democracy and sovereignty that will benefit future generations," he said on Tuesday.

The government said the construction of the wing will follow a PNG-led design and consultation process, drawing on local craftsmanship and expertise.

"As close neighbours and warm friends, the future prosperity of our two nations are bound together," the prime minister said.

Meanwhile, many contemporar

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